Home / 39,330.72-59,013.36-13,039.20

Finding the Fourth Proportional to 39,330.72, 59,013.36 and 13,039.20

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Solution

The fourth proportional to 39,330.72, 59,013.36 and 13,039.20 is: 19,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.72 : 59,013.36 = 13,039.20 : x
  2. Step 2: Convert to fraction form
    39,330.72/59,013.36 = 13,039.20/x
  3. Step 3: Cross multiply
    39,330.72x = 59,013.36 × 13,039.20
  4. Step 4: Simplify right side
    39,330.72x = 769,487,003.71
  5. Step 5: Solve for x
    x = 769,487,003.71/39,330.72
  6. Step 6: Final answer
    x = 19,564.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.